Performance suspension for 90 escort

Ok, I was looking online, and I found three different suspension packages for a gen 1 escort. I was thinking about the Ground Control coil overs, but it's only for the front, so I was leaning more toward the lowering suspension kits. I've seen two brands, Eibach and Intrax. Does anyone know how good the Intrax springs are on an Escort? Anyone have any experience with them?